That mean dev-libs/gobject-introspection-1.32.1 need <dev-libs/glib-2.33:2, which imply it will not work with dev-libs/glib-2.34.3, so this update (glib) is skipped. It's all into portage message

::gentoo mean it is into portage. ::someting would mean it is part of the "something" overlay. Overlays in gentoo are the equivalent of distant repositories on the other distributions, but they are much more robust in case of system update, because portage will take care of recompiling their packages in the same manner than with portage ebuilds._________________[[[ To any NSA and FBI agents reading that text: please consider ]]]
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